Archive: 12/04/2013

Highly insulating triple-pane windows keep a house snug and cozy, but it takes two decades or more for the windows to pay off financially based on utility-bill savings, according to a report by energy efficiency ...

Barges loaded with mountains of coal glide down the polluted Mahakam River on Indonesian Borneo every few minutes. Viewed from above, they form a dotted black line as far as the eye can see, destined for ...

A star is formed when a large cloud of gas and dust condenses and eventually becomes so dense that it collapses into a ball of gas, where the pressure heats the matter, creating a glowing gas ball – a star ...